203.237.128.0/17
AS4766 · Korea Telecom
Need more data or want to access it via API or data downloads? Sign up to get free access
Sign up for free ›Summary
| Country |
South Korea
|
| Domain | kren.kr |
| ASN | AS4766 |
| Registry | APNIC |
| ID | KREN |
WHOIS Details
inetnum: 203.237.128.0 - 203.237.255.255 netname: KREN descr: Korean Education Network admin-c: IM70-AP tech-c: IM70-AP country: KR status: ALLOCATED PORTABLE mnt-by: MNT-KRNIC-AP mnt-irt: IRT-KRNIC-KR last-modified: 2017-02-02T04:55:27Z source: APNIC irt: IRT-KRNIC-KR address: 9, Jinheung-gil, Naju-si, Jeollanam-do e-mail: irt@nic.or.kr abuse-mailbox: irt@nic.or.kr admin-c: IM574-AP tech-c: IM574-AP auth: # Filtered remarks: irt@nic.or.kr was validated on 2020-04-09 mnt-by: MNT-KRNIC-AP last-modified: 2025-09-04T01:00:01Z source: APNIC person: IP Manager address: 57 Daehak-ro, Jongno-gu, Seoul country: KR phone: +82-2-882-5363 e-mail: kindman@kren.kr nic-hdl: IM70-AP mnt-by: MNT-KRNIC-AP last-modified: 2025-11-17T00:10:02Z source: APNIC inetnum: 203.237.128.0 - 203.237.255.255 netname: KREN-KR descr: Korean Education Network country: KR admin-c: IA142-KR tech-c: IM142-KR status: ALLOCATED PORTABLE mnt-by: MNT-KRNIC-AP mnt-irt: IRT-KRNIC-KR changed: hostmaster@nic.or.kr 20240912 remarks: This information has been partially mirrored by APNIC from remarks: KRNIC. To obtain more specific information, please use the remarks: KRNIC whois server at whois.kisa.or.kr. source: KRNIC person: IP Manager address: 57 Daehak-ro, Jongno-gu, Seoul address: 1 country: KR phone: +82-2-882-5363 e-mail: kindman@kren.kr nic-hdl: IA142-KR mnt-by: MNT-KRNIC-AP remarks: This information has been partially mirrored by APNIC from remarks: KRNIC. To obtain more specific information, please use the remarks: KRNIC whois server at whois.kisa.or.kr. source: KRNIC person: IP Manager address: 57 Daehak-ro, Jongno-gu, Seoul address: 1 country: KR phone: +82-2-882-5363 e-mail: kindman@kren.kr nic-hdl: IM142-KR mnt-by: MNT-KRNIC-AP remarks: This information has been partially mirrored by APNIC from remarks: KRNIC. To obtain more specific information, please use the remarks: KRNIC whois server at whois.kisa.or.kr. source: KRNIC
Overlapping Ranges
BGP prefixes that are contained by 203.237.128.0/17
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.237.216.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.250.0/24 | AS4766 | Chungang University | 256 |
| 203.237.217.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.190.0/24 | AS9318 | Shinhan University | 256 |
| 203.237.168.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.169.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.170.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.171.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.172.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.173.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.174.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.175.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.226.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.223.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.222.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.160.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.161.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.162.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.163.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.164.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.165.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.166.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.167.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.172.0/24 | AS3786 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.254.0/24 | AS38694 | CHEONGJU NATIONAL UNIVERSITY OF EDUCATION | 256 |
| 203.237.255.0/24 | AS38694 | CHEONGJU NATIONAL UNIVERSITY OF EDUCATION | 256 |
| 203.237.221.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.220.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.219.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.154.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.156.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.157.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.158.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.159.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.191.0/24 | AS4766 | daekuUniversity of Education | 256 |
| 203.237.204.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.205.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.206.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.207.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.208.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.209.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.210.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.211.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.212.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.213.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.214.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.215.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.224.0/24 | AS4766 | DANKOOK UNIVERSITY | 256 |
| 203.237.225.0/24 | AS4766 | HALLYM COLLEGE | 256 |
| 203.237.218.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
Nearby Ranges
BGP prefixes that overlap with 203.237.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.237.64.0/19 | AS9778 | KISTI | 8,192 |
| 203.237.32.0/19 | AS18297 | Gwangju Institute of Science and Technology | 8,192 |
| 203.237.0.0/19 | AS10166 | Korea Water Resources Corporation | 8,192 |
| 203.237.96.0/19 | AS9754 | Korean Education Network | 8,192 |
| 203.237.202.0/23 | AS18026 | CHEJU NATIONAL UNIVERSITY | 512 |
| 203.237.175.0/24 | AS18031 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.160.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.161.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.162.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.163.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.164.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.165.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.166.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.167.0/24 | AS3786 | Dongyang Technical College | 256 |
| 203.237.172.0/24 | AS3786 | SANGMYUNG UNIVERSITY | 256 |
| 203.237.254.0/24 | AS38694 | CHEONGJU NATIONAL UNIVERSITY OF EDUCATION | 256 |
| 203.237.255.0/24 | AS38694 | CHEONGJU NATIONAL UNIVERSITY OF EDUCATION | 256 |
| 203.237.154.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.156.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.157.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.158.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.159.0/24 | AS4766 | DAEJEON UNIVERSITY | 256 |
| 203.237.191.0/24 | AS4766 | daekuUniversity of Education | 256 |
| 203.237.204.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.205.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.206.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.207.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.208.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.209.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.210.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.211.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.212.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.213.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.214.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.215.0/24 | AS4766 | useokUniversity | 256 |
| 203.237.224.0/24 | AS4766 | DANKOOK UNIVERSITY | 256 |
| 203.237.225.0/24 | AS4766 | HALLYM COLLEGE | 256 |
| 203.237.231.0/24 | AS4766 | HALLYM COLLEGE | 256 |
| 203.237.250.0/24 | AS4766 | Chungang University | 256 |
| 203.237.190.0/24 | AS9318 | Shinhan University | 256 |
| 203.237.216.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.217.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.218.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.220.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.221.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.222.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
| 203.237.223.0/24 | AS9318 | DANKOOK UNIVERSITY | 256 |
Hosted domains
There are 26 domain names hosted across 21 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|
Hosted domains API
Pingable IPs
839 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 203.237.254.120 |
2.94ms from Incheon,
KR
|
|
| 203.237.169.203 |
3.96ms from Seoul,
KR
|
|
| 203.237.178.50 |
4.36ms from Seoul,
KR
|
|
| 203.237.160.222 |
2.03ms from Seoul,
KR
|
|
| 203.237.157.186 |
4.22ms from Seoul,
KR
|
|
| 203.237.226.27 |
2.25ms from Incheon,
KR
|
|
| 203.237.247.248 |
7.21ms from Incheon,
KR
|
|
| 203.237.168.108 |
1.49ms from Seoul,
KR
|
|
| 203.237.204.196 |
5.07ms from Seoul,
KR
|
|
| 203.237.216.110 |
3.42ms from Seoul,
KR
|
|
| 203.237.167.39 |
1.73ms from Incheon,
KR
|
|
| 203.237.134.230 |
3.40ms from Seoul,
KR
|
|
| 203.237.242.18 |
7.45ms from Incheon,
KR
|
|
| 203.237.177.63 |
4.35ms from Incheon,
KR
|
|
| 203.237.201.254 |
4.82ms from Incheon,
KR
|
|
| 203.237.251.2 |
1.31ms from Seoul,
KR
|
|
| 203.237.198.54 |
5.43ms from Seoul,
KR
|
|
| 203.237.174.231 |
2.20ms from Seoul,
KR
|
|
| 203.237.183.62 |
4.37ms from Seoul,
KR
|
|
| 203.237.215.94 |
4.63ms from Seoul,
KR
|
|
| 203.237.156.84 |
4.39ms from Seoul,
KR
|
|
| 203.237.195.75 |
5.46ms from Seoul,
KR
|
|
| 203.237.241.171 |
7.43ms from Incheon,
KR
|
|
| 203.237.165.28 |
1.85ms from Seoul,
KR
|
|
| 203.237.194.29 |
4.20ms from Seoul,
KR
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 94.141.237.113 |
1.04ms from Almaty,
KZ
|
|
| 94.214.26.1 |
5.74ms from Amsterdam,
NL
|
|
| 104.156.139.1 |
0.49ms from Amsterdam,
NL
|
|
| 47.209.248.1 |
14.40ms from Ashburn,
US
|
|
| 67.133.234.1 |
2.80ms from Ashburn,
US
|
|
| 24.241.9.1 |
7.62ms from Atlanta,
US
|
|
| 174.80.200.1 |
10.37ms from Atlanta,
US
|
|
| 170.55.72.33 |
0.74ms from Atlanta,
US
|
|
| 139.55.8.113 |
3.31ms from Atlanta,
US
|
|
| 1.91.229.49 |
10.56ms from Beijing,
CN
|
|
| 186.23.235.1 |
1.08ms from Buenos Aires,
AR
|
|
| 181.166.57.1 |
7.69ms from Buenos Aires,
AR
|
|
| 128.135.151.1 |
0.93ms from Chicago,
US
|
|
| 195.178.106.1 |
0.41ms from Chisinau,
MD
|
|
| 83.93.23.1 |
4.25ms from Copenhagen,
DK
|
|
| 70.115.109.1 |
2.49ms from Dallas,
US
|
|
| 208.180.126.1 |
4.79ms from Dallas,
US
|
|
| 103.43.228.1 |
2.93ms from Delhi,
IN
|
|
| 65.144.169.177 |
8.40ms from Denver,
US
|
|
| 4.245.251.225 |
0.16ms from Dublin,
IE
|
|
| 80.145.115.225 |
1.65ms from Duesseldorf,
DE
|
|
| 181.222.96.1 |
10.88ms from Fortaleza,
BR
|
|
| 142.177.20.1 |
15.25ms from Fredericton,
CA
|
|
| 116.26.112.1 |
9.03ms from Guangzhou,
CN
|
|
| 113.81.140.1 |
5.12ms from Guangzhou,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
An API built with users in mind: reliable, accurate, and easy-to-use
Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.
Our IP tools
Explore all toolsSummarize IPs
Use our data visualization tool to create a visual overview of multiple IPs.
Try Summarize IPs